JSFiddle - React, Tailwind, and code Playground

by Fernando Leal

HTML

<input id="edtPesos1" class="soma"/>
<input id="edtPesos2" class="soma"/>
<input id="edtPesos3" class="soma"/>
<button id="btnSoma">Somar</button>

JavaScript

function somaPesos(){
    var soma = 0;
    
    var itens = document.getElementsByClassName("soma");
    for(i = 0; i < itens.length; i++){
        var item = parseInt(itens[i].value);
        alert(item);
        soma = soma + item;                 
    }
    alert(soma);
    
    return false;
}

var btnSoma = document.getElementById("btnSoma");
btnSoma.addEventListener("click", somaPesos);